Bless you for caring for your mom.
My mother lives with us. She has had a few surgeries and prolonged complications. When she is recovering from surgeries, I have been the sole caretaker. It's a tough job sometimes. Yet, I love her and wouldn't have it any other way. (My siblings are not interested in helping out.) She needs a bit of help with lots of things everyday.
I have to set aside time for myself. I have to be very firm about this.
WC